128821825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{2617}}^1$

素因数の和:2817

約数の個数: 24

約数和(自身を含む): 175301280

約数和(自身を除く): 46479455

約数列:

[1, 5, 11, 25, 55, 179, 275, 895, 1969, 2617, 4475, 9845, 13085, 28787, 49225, 65425, 143935, 468443, 719675, 2342215, 5152873, 11711075, 25764365, 128821825]

約数ペア:

[(1, 128821825), (5, 25764365), (11, 11711075), (25, 5152873), (55, 2342215), (179, 719675), (275, 468443), (895, 143935), (1969, 65425), (2617, 49225), (4475, 28787), (9845, 13085)]